problema no scroll panel

nãoi estou a conseguir por quando carrego para sima ou para baixo o contiudo do painel

o que tenho dentro Container

import com.jme3.app.Application;
 import com.jme3.app.SimpleApplication;
 import com.jme3.app.state.BaseAppState;
 import com.jme3.math.Vector3f;
 import com.jme3.renderer.ViewPort;
 import com.jme3.scene.Node;
 import com.overthemoon.core.inventory.panel.ViewportPanel;
 import com.overthemoon.core.inventory.panel.ViewportPanel2D;
 import com.simsilica.lemur.ActionButton;
 import com.simsilica.lemur.Axis;
 import com.simsilica.lemur.CallMethodAction;
 import com.simsilica.lemur.Container;
 import com.simsilica.lemur.DefaultRangedValueModel;
 import com.simsilica.lemur.FillMode;
 import com.simsilica.lemur.Insets3f;
 import com.simsilica.lemur.Label;
 import com.simsilica.lemur.Panel;
 import com.simsilica.lemur.PasswordField;
 import com.simsilica.lemur.Slider;
 import com.simsilica.lemur.TabbedPanel;
 import com.simsilica.lemur.TextField;
 import com.simsilica.lemur.component.BorderLayout;
 import com.simsilica.lemur.component.SpringGridLayout;
 import com.simsilica.lemur.core.GuiControl;
 import com.simsilica.lemur.style.ElementId;
 import com.simsilica.lemur.style.Styles;

 /**
 *
 * @author Pedro Alves
 */
 public class OptionsState extends BaseAppState {
 private Container loginPanel;
 private TextField nameField;
 private PasswordField passwordfield;
 private ViewPort viewPort;
 protected void apply() {

 // String name = nameField.getText().trim();
 // String password= passwordfield.getText().trim();
 // if( getState(ConnectionState.class).joinserver(nameField.getText(),passwordfield.getText()) ) {
 // getStateManager().detach(this);
 //}
 }
 protected void join() {

 // String name = nameField.getText().trim();
 // String password= passwordfield.getText().trim();
 // if( getState(ConnectionState.class).joinserver(nameField.getText(),passwordfield.getText()) ) {
 // getStateManager().detach(this);
 //}
 }
 protected void cancel() {
 getStateManager().attach(new MainMenuState());
 getStateManager().detach(this);
 // String name = nameField.getText().trim();
 // String password= passwordfield.getText().trim();
 // if( getState(ConnectionState.class).joinserver(nameField.getText(),passwordfield.getText()) ) {
 // getStateManager().detach(this);
 //}
 }
 public OptionsState() {

 }
 @Override
 protected void initialize(Application app) {
 loginPanel = new Container();
 loginPanel.addChild(new Label("Options", new ElementId("title")));

 Container props = loginPanel.addChild(new Container(new SpringGridLayout(Axis.Y, Axis.X, FillMode.None, FillMode.Last)));
 props.setBackground(null);
 TabbedPanel tabs = new TabbedPanel();
 Panel panel1=new Panel(500,200);
 panel1.setInsets(new Insets3f(10, 10, 10, 10));
 ViewportPanel panel= new ViewportPanel(getStateManager(),panel1.getElementId(),panel1.getStyle());
 panel.attachScene(panel1);

 Container tab1 = tabs.addTab("Game Options", new Container());
 panel1=tab1.addChild(new Label("Game Options"));
 panel1=tab1.addChild(new Label("Game Options"));
 panel1=tab1.addChild(new Label("Game Options"));
 panel1=tab1.addChild(new Label("Game Options"));
 panel1=tab1.addChild(new Label("Game Options"));
 panel1=tab1.addChild(new Label("Game Options"));
 panel1=tab1.addChild(new Label("Game Options"));
 panel1=tab1.addChild(new Label("Game Options"));
 panel1=tab1.addChild(new Label("Game Options"));
 panel1=tab1.addChild(new Label("Game Options"));
 panel1=tab1.addChild(new Label("Game Options"));
 panel1=tab1.addChild(new Label("Game Options"));
 panel1=tab1.addChild(new Label("Game Options"));
 panel1=tab1.addChild(new Label("Game Options"));
 panel1=tab1.addChild(new Label("Game Options"));
 panel1=tab1.addChild(new Label("Game Options"));
 panel1=tab1.addChild(new Label("Game Options"));
 panel1=tab1.addChild(new Label("Game Options"));
 panel1=tab1.addChild(new Label("Game Options"));
 panel1=tab1.addChild(new Label("Game Options"));
 panel1=tab1.addChild(new Label("Game Options"));
 panel1=tab1.addChild(new Label("Game Options"));
 panel1=tab1.addChild(new Label("Game Options"));
 panel1=tab1.addChild(new Label("Game Options"));

 tab1.addChild(panel1);

 tab1.addChild(panel);
 Container tab2 = tabs.addTab("Graphic Options", new Container());
 tab2.addChild(new Label("Grapicos options"));
 Container tab3 = tabs.addTab(" Audio Options", new Container());
 tab3.addChild(new Label("Audio"));
 Container tab4 = tabs.addTab("Key Mapping ", new Container());
 tab4.addChild(new Label("Key Mapping"));
 loginPanel.addChild(tabs);

 Container buttons = loginPanel.addChild(new Container(new SpringGridLayout(Axis.X, Axis.Y)));
 buttons.setBackground(null);
 buttons.setLayout(new SpringGridLayout(Axis.X, Axis.Y));
 buttons.addChild(new ActionButton(new CallMethodAction("Default", this, "join")));
 buttons.addChild(new ActionButton(new CallMethodAction("Reset", this, "join")));
 buttons.addChild(new ActionButton(new CallMethodAction("Apply", this, "join")));
 buttons.addChild(new ActionButton(new CallMethodAction("OK", this, "join")));
 buttons.addChild(new ActionButton(new CallMethodAction("Cancel", this, "cancel")));
 float scale = 1.5f * getState(MainMenuState.class).getStandardScale();
 loginPanel.setLocalScale(scale);
 Vector3f prefs = loginPanel.getPreferredSize().clone();
 prefs.x = Math.max(300, prefs.x);
 loginPanel.setPreferredSize(prefs.clone());
 // Now account for scaling
 prefs.multLocal(scale);
 int width = app.getCamera().getWidth();
 int height = app.getCamera().getHeight();
 //loginPanel.setLocalTranslation(width * 0.5f - prefs.x * 0.5f, height * 0.5f + prefs.y * 0.5f, 10);
 }

 @Override
 protected void cleanup(Application app) {

 }

 @Override
 protected void onEnable() {
 ViewportPanel2D viewportPanel = new ViewportPanel2D(getStateManager(), new ElementId(Container.ELEMENT_ID), Styles.ROOT_STYLE);
 viewportPanel.setPreferredSize(new Vector3f(600,400 , 1));
 int width = getApplication().getCamera().getWidth();
 int height = getApplication().getCamera().getHeight();
 viewportPanel.setLocalTranslation((width - 600) / 2, (height + 400) / 2, 100);
 BorderLayout layout = new BorderLayout();
 viewportPanel.getControl(GuiControl.class).setLayout(layout);
 Slider slider_V = new Slider(new DefaultRangedValueModel(), Axis.Y);
 layout.addChild(BorderLayout.Position.East, slider_V);

 Slider slider_H = new Slider(new DefaultRangedValueModel(), Axis.X);
 layout.addChild(BorderLayout.Position.South, slider_H);

 Node root = ((SimpleApplication)getApplication()).getGuiNode();
 root.attachChild(viewportPanel);
 viewportPanel.attachScene(loginPanel);

 }

 @Override
 protected void onDisable() {
 //throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
 loginPanel.removeFromParent();
 }

 }